Hi everyone, I'm testing a W5500 Ethernet module with my ESP32 board using SPI. I'm able to successfully communicate with the chip — I can read the version register (0x04) and the PHY configuration register (0xBA). So SPI and reset seem to be working fine. However, the W5500 reports Link: DOWN, ev…

finally i find the culprits damping resistors(33R) in RXN/RXP and TXN/TXP. No need of these resistors. [w5500]

Custom W5500 with ESP32 S3 ,SPI Working but "Link: DOWN" – No Ethernet Connection Detected

araviiot June 25, 2025, 5:54am 6

This arduino code is working in ESP32 s3 module + w5500 ethernet shield ,but not working in custom board? can you review the schematic

Topic		Replies	Views
Custom w5500 and esp board shows no Phy link Hardware Development	19	513	July 24, 2025
Ethernet Shield W5500 not starting Programming	5	2099	May 5, 2021
How to debug W5100 Networking, Protocols, and Devices	15	5247	May 6, 2021
Ethernet module W5500 from eBay, autonegotiation fails Networking, Protocols, and Devices	3	1713	May 6, 2021
Ethernet module W5500 from AliExpress - how to use? Networking, Protocols, and Devices	20	44716	May 6, 2021